Fix typo in CTest argument

Author: Youw

.github/workflows/builds.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       # set_option known to fail on Github Actions
-      COMMON_CTEST_ARGS: ---no-compress-output --output-on-failure -E "^set_option$"
+      COMMON_CTEST_ARGS: --no-compress-output --output-on-failure -E "^set_option$"
 
     steps:
     - uses: actions/checkout@v3